Mar 4 – 7, 2019
Europe/Zurich timezone
There is a live webcast for this event.


Sebastian Lopienski | CERN


Sebastian Lopienski is director of the CERN School of Computing (CSC).

Sebastian also serves as CERN's deputy Computer Security Officer. He works on security strategy and policies; offers internal consultancy and audit services; develops and maintains security tools for vulnerability assessment and intrusion detection; provides training and awareness raising; and does incident investigation and response.

During his work at CERN since 2001, Sebastian has had various assignments, including designing and developing software to manage and support services hosted in the CERN Computer Centre; providing Central CVS Service for software projects at CERN; and development of applications for accelerator controls in Java. He graduated from the University of Warsaw (MSc in Computer Science) in 2002, and earned an MBA degree at the Enterprise Administration Institute in Aix-en-Provence in 2010.

His professional interests include software and network security, distributed systems, and Web and mobile technologies. In his free time, he enjoys sailing, kitesurfing, skiing and traveling.


Joelma Tolomeo | CERN

Administrative Manager

Having graduated in Accounting from the Universidade Catholica de Pernambuco (Brazil), Joelma was in charge of the accounting section for the Admed (Brazil insurance company).

In 2001 she started at CERN in the Finance Department where she worked during 9 years in different financial areas, before joining the IT Department.

Among several assignments Joelma has in the IT Department, one of her responsibilities is the financial management for the recruitment process of Fellows and Associated Members of the personnel, she is the financial Officer for the European projects in the IT department (11 European projects in 2017) and she has the IT Deputy Department Administrative Officer role.

Interested in presenting the Organization in several languages (French, Portuguese, English, Italian) Joelma is a CERN official guide and she participates in various CERN events: "Researchers’ Night at CERN", "Automnales", "Open days" and others.


Nikos Kasioumis | CERN

Technical Manager

Nikos is a member of the Web Frameworks team in IT Department at CERN. He first joined CERN at 2008 as a technical student where he completed his thesis on searching and personalization services for the CERN Document Server. In 2011 he returned as a fellow, leading the software infrastructure work package for the European project "BlogForever". The project's objective was to create robust facilities for the preservation, management and dissemination of blogs.

Since 2012 he has been a staff member working on the development and operation of the CERN Document Server, on the development, operation and automation of the E-Publishing service, on the development of a Co-Authoring service, as well as a contributor for the "Invenio" open source digital library software suite. He actively participates in CERN's outreach activities such as TEDxCERN, CineGlobe and CERN Open Days.


Inverted CERN School of Computing sessions will be chaired by past CSC students:

  • Julio Calvo

  • Daniel Campora

  • Stefan Chitic

  • Michael Davis

  • Eva Hansen

  • Miguel Hermo Serans

  • Benedikt Wurkner